Assigistoe op one-half to f



J. O. SCOTT.

GAR AXLE BOX.

(No Model.)

Patented June 9, 1885 w. PETERS. Pholollmngnpher. Walllingtan. [LC

NITED STATES ATENT rricn. I

JAMES o. SCOTT, or TYLER, TEXAS, ASSIGNOR or ONEIVIALF To F. L. DILLEY, or SAME PLACE.

CAR-AXLE BOX.

SPECIFICATION forming part of Letters Patent No. 319,514, dated June 9, 1.885.

Application filed September 4,1884. (No model.)

To OJZZ whom it may concern.-

Be it known that I, JAMES O. SCOTT, of Tyler, in the county of Smith and State of Texas, have invented certain new and useful Improvements in Axle-Boxes; and I do hereby declare that the same is a full, clear, and exact description of the invention, which will enable others skilled in the art to make and use the same, reference being had to the accompanying drawings, and the letters of reference marked thereon, which form a part of this specification.

This invention relates to improvements incar-axle boxes, and is an improvement on the invention shown and described in Letters Patent of the United States granted to me on the 30th day of May, 1882, and being numbered 258,813. The present invention is directed to the construction of the flanges formed on the sides or ends of the box, and the grooves in the sides of ends of the cap, and has for its object the production of an axle'or oil-box for car-axles, so arranged and constructed that the lid or cap thereof will be automatically and securely held in position when closed.

At the outset I would state that I am aware that it has been proposed heretofore to employ an axle-box having beveled end and vertical side grooves, and an inclined lid having side flanges projecting at right angles along its entire edge, and formed with inward-projecting vertical ribs to accomplish the same result I have in view. This arrangement is defective and objectionable for many reasons. The beveled end of the box, which performs a very important part of the act of locking the lid in position upon the box, when closed, having no protection whatever, and being exposed when the box is open, is likely to become nicked or chipped off to such an extent as to materially reduce that portion of the side of the box between the beveled end and the vertical side grooves as to cause the lid to fit loosely upon the box, and thereby create a defect which it has been long sought to remedy. It has also been proposed to do the same thing by employing the means described and illus trated in my United States Letters Patent hereinbefore referred to. This plan also is objectionable and defective, the principal objection being, however, that the bearingsurface being confined entirely to the holdingpin running at right angles to the arm on the side of the lid or cap it has been discovered that it is not sufficient for the purpose of holding the lid at all times in proper position. The pin is also liable to be broken off from having to raise and close the lid so many times.

My present invention is the outgrowth of experiments made for the express purpose of remedying the numerous defects and. shortcomings of the several plans for accomplishing this same result, and while it possesses all the characteristics and advantages of those now in use it combines features which, sofar as I am aware, have never been conjoined be fore.

It is a further purpose of my invention to provide an axle-box having a detachable cap, provided with inwardly projecting pins or trunnions upon its flanged ends, which run in grooves in the opposite walls of the box, in

conjunction with inwardly turned flanges upon the end flanges, whereby the cap is not only closely drawn against the open end of the box, but may also be raised and thrown over upon the top of the latter and retained in that position by its own gravity.

The invention can best be explained and understood by reference to the accompanying drawings, in which Figure l is a side elevation of so much of a car-axle box as is necessary to illustrate my invention, the cap being elevated. Fig. 2- is a detail view of the cap detached. Fig. 3 is a side view, partly in section, showing the lid down.

In the accompanying drawings, A repre sents the axle or oil box of the ordinary construction, provided with vertical sides or ends. B is the usual opening in the front of the box for the insertion of the oil and packing. is the cap or lid for covering the opening B. It is of any suitable material, and preferably a rectangular plate, having in the center thereof a lug or projection, a, which serves as a handle to raise the cap when it is desired to uncover the opening B. At each end or side of the cap B is an extension, I), of the cap, provided with a pin, 1), at right angles there to. Extensions 1) are also provided on their inner sides with wcdgeshaped grooves c, as

seen in the drawings. These grooves c, it will be seen from the drawings, are about one-half the width of the cap 13, terminating at pin 1). It has been found expeditious and productive of excellent results to thus arrange these grooves. On the sides or ends of the box are formed wedge-shaped flanges d, which slide in the said correspondingly-shaped grooves c in the cap or lid of the box, thus locking the cover firmly to the box before the pivots I) reach the bottom of the grooves 6. It is to these two features namely, the wedge shaped flanges and correspondingly-shaped grooves that my claim is made. The pins I) slide in inclined grooves e on each side of the box A, near its front end. The grooves are the same as those described and shown in the aforesaid Letters Patent, and require no particular description here. Across the front end of the box at its top is a ridge, f, against which the knob or rivet a in the cap B strikes and prevents the cap from being drawn farther back and out of the grooves e. A lip or extension, 6', of the groove 6 at the top of the box clearing the ridge f permits the withdrawal of the pins and removal of the cap B from the box when the knob or riveta is removed from the cap. It will thus be understood that in order to securely and tightly fasten the cap upon the box it will only be necessary to drop the cap and allow it to slide into position upon the box, as seen in Fig. 3. When it is desired to open the box, it is only necessary to push upward on the handle a, and the grooves and flanges will readily become unlocked, thereby allowing of the elevating of the cap B to the position seen in Fig. 1.

I attach importance to the grooves 0, arranged in the upper half of the cover, in their adaptability to serve with the flanges d of the box to Wedge the lid firmly in place before the pins b reach the bottom of the slots e Having thus fully described my invention and the best way known to me of carrying the same into effect, I would remark that I do not restrict myself to the particular devices herein shown and described, inasmuch as my invention may be carried out in a variety of ways without departure from my invention.

What I claim, and desire to secure by Letters Patent, is-

In an axle-box, the combination, with the box A, having the wedge-shaped projections d, and slots e e, of the cover 13, having pins 5, and wedge-shaped recesses 0 formed between said pins and the top of the lid, whereby the gravity of the cover will wedge it to the box when the pins are without a bearing, as set forth.

In testimony whereof I have hereunto set -my hand this 20th day of August, 1884:.

JAMES O. SCOTT.

' Witnesses:

J NO. H. BONNER, T. T. COTNAM. 

